Heavy metals content as a criterion for assessment of potato tubers
Wiesław Bednarek
Katedra Chemii Rolnej i rodowiskowej, Akademia Rolnicza w Lublinie ul. Akademicka 15, 20–950 Lublin, PolandPrzemysław Tkaczyk
Okręgowa Stacja Chemiczno-Rolnicza w Lublinie, ul. Sławinkowska 5, 20–810 Lublin, PolandSławomir Dresler
Abstract
The environmental study was aimed at assessment of potato tuber quality based on the content of heavy metals (lead, cadmium, nickel, zinc, copper, arsenic, mercury) and finding a correlation between these heavy metals and some properties of soil and plant. Metals in soil and tubers were determined with ASA method, other soil properties were also determined: granulometric composition with Prószy ski aerometric method, pH in 1 mol KCl dm-3, humus with Tiurin method, P and K available according to Egner-Riehm, Mg available according to Schachtschabel, S with nephelemetric method. The results of the analyses were statistically assessed with analysis of variance, simple dassification with the use of Tuckey,s confidence halfinterval, correlation coefficient, multiple correlation coefficient, coefficient of determination and regression equation were computed. The content of these trace elements in potato tubers was not significantly dependent on the region of cultivation. Properties of the soil and the plant did not decide, in most cases, about the contents. The mean content of heavy metals in potato tubers (0.042 mg Pb, 0.042 mg Cd, 0.176 mg Ni, 3.378 mg Zn, 0.793 mg Cu, 0.002 mg As, 0.00012 mg Hg kg-1 of fresh matter) indicates that it did not exceed the upper threshold typical of products of this type.
Keywords:
potato, heavy metals, quality of tuberKatedra Chemii Rolnej i rodowiskowej, Akademia Rolnicza w Lublinie ul. Akademicka 15, 20–950 Lublin, Poland
Okręgowa Stacja Chemiczno-Rolnicza w Lublinie, ul. Sławinkowska 5, 20–810 Lublin, Poland
License
Articles are made available under the conditions CC BY 4.0 (until 2020 under the conditions CC BY-NC-ND 4.0).
Submission of the paper implies that it has not been published previously, that it is not under consideration for publication elsewhere.
The author signs a statement of the originality of the work, the contribution of individuals, and source of funding.
Self-Archiving Policy
Agronomy Science has adopted a self-archiving policy called blue by the Sherpa Romeo database. From 2021 authors can self-archive article postprints and editorial versions (under the CC BY 4.0 licence). Articles from earlier years (available under the CC BY-NC-ND 4.0 licence) can only be self-archived as editorial versions.